72606404543 has 2 divisors, whose sum is σ = 72606404544. Its totient is φ = 72606404542.

The previous prime is 72606404539. The next prime is 72606404551. The reversal of 72606404543 is 34540460627.

It is a weak prime.

It is an emirp because it is prime and its reverse (34540460627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72606404543 - 2² = 72606404539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72606404543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72606404503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36303202271 + 36303202272.

It is an arithmetic number, because the mean of its divisors is an integer number (36303202272).

Almost surely, 2^72606404543 is an apocalyptic number.

72606404543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72606404543 is an equidigital number, since it uses as much as digits as its factorization.

72606404543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 72606404543 in words is "seventy-two billion, six hundred six million, four hundred four thousand, five hundred forty-three".